Method for Constructing a Ballastless Railway Track

Abstract

The present invention relates to a method for the construction of a ballastless railway in which a concrete bedding can be constructed in a correct, well-aligned and finished way, regardless of the location where the concrete bedding must be constructed.

1 . Method for constructing a railway, which method includes the following steps:
 a. the provision of a first concrete layer ( 3 ) on a ground ( 2 ), which first concrete layer includes a lower surface that is in contact with the ground and an opposite upper surface;   b. the removal of at least a part of an upper part of the first concrete layer, which upper part extends from the upper surface of the concrete layer to the lower surface;   c. the provision of two temporary rails ( 6 ) on the first concrete layer of which at least a part of the upper part has been removed;   d. the provision of concrete on the first concrete layer by means of a vehicle ( 12 ,  13 ) that drives on the temporary rails, as a result of which a second concrete layer ( 11 ) is formed on the first concrete layer;   e. the displacement of the temporary rails from the first concrete layer to the second concrete layer, at which the rails are permanently attached to the second concrete layer by means of permanent attachment means ( 14 ),   
       wherein a planned horizontal and vertical alignment of the railway to construct, is measured, taking into account the horizontal and vertical alignment of the first concrete layer, in which the at least partially to be removed upper part of the first concrete layer is adjusted according to the planned alignment so that at least a part of the upper surface of the first concrete layer corresponds to the planned alignment. 
     
     
         2 . Method of  claim 1 , in which the provision of concrete onto the first concrete layer in step d) is realized between the two temporary rails. 
     
     
         3 . Method of  claim 1 , wherein the removal of at least a part of the upper part of the first concrete layer in step b) is realized by providing at least two trenches in the first concrete layer that extend substantially in parallel to each other, preferably in which the two temporary rails are provided in said trenches. 
     
     
         4 . Method of  claim 1 , in which for the provision of concrete in step d), a casing is provided on the first concrete layer, in which casing the concrete will be provided and which casing is preferably positioned between the two temporary rails. 
     
     
         5 . Method of  claim 3 , in which for the provision of concrete in step d), a casing is provided, which casing is positioned in the two trenches between the two temporary rails and in which casing the concrete will be provided. 
     
     
         6 . Method of  claim 4 , in which the casing contains at least two substantially plate-shaped casing elements, forming a gutter with the first concrete layer in which the concrete is provided. 
     
     
         7 . Method of  claim 4 , in which the casing is attached on the first concrete layer by means of temporary attachment means. 
     
     
         8 . Method of  claim 4 , in which the casing is removed after the provision of the second concrete layer and can preferably be reused. 
     
     
         9 . Method of  claim 1 , in which for the provision of concrete in step d), a reinforcement is provided, which reinforcement is appropriate for reinforcing the second concrete layer and which reinforcement is preferably attached demountably to the casing, if present. 
     
     
         10 . Method of  claim 9 , in which at least a part of the permanent attachment means for the permanent attachment of the rails to the second concrete layer, are connected bearingly to said reinforcement. 
     
     
         11 . Method of  claim 10 , in which said permanent attachment means include at least one dowel and in which said reinforcement is connected bearingly to at least one dowel, preferably via at least one positioning element. 
     
     
         12 . Method of  claim 1 , in which at least a part of the attachment means for permanently attaching the rails to the second concrete layer, are placed in the second concrete layer before substantially hardening of the second concrete layer. 
     
     
         13 . Method of  claim 9 , in which at least a part of the attachment means for permanently attaching the rails are placed in the second concrete layer after substantially hardening of the second layer. 
     
     
         14 . Method of  claim 1 , in which the first concrete layer contains at least one connection element ensuring a better attachment between the first concrete layer and the second concrete layer. 
     
     
         15 . Method of  claim 1 , in which the provision of the two temporary rails is realized by attaching the temporary rails with temporary attachment means onto the first concrete layer.